package idv.loveloser.dao;

import java.util.List;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.criterion.Example;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * A data access object (DAO) providing persistence and search support for
 * MdlQuestionCategories entities. Transaction control of the save(), update()
 * and delete() operations can directly support Spring container-managed
 * transactions or they can be augmented to handle user-managed Spring
 * transactions. Each of these methods provides additional information for how
 * to configure it for the desired type of transaction control.
 * 
 * @see idv.loveloser.dao.MdlQuestionCategories
 * @author MyEclipse Persistence Tools
 */

public class MdlQuestionCategoriesDAO extends BaseHibernateDAO {
	private static final Logger log = LoggerFactory
			.getLogger(MdlQuestionCategoriesDAO.class);
	// property constants
	public static final String NAME = "name";
	public static final String CONTEXTID = "contextid";
	public static final String INFO = "info";
	public static final String INFOFORMAT = "infoformat";
	public static final String STAMP = "stamp";
	public static final String PARENT = "parent";
	public static final String SORTORDER = "sortorder";

	public void save(MdlQuestionCategories transientInstance) {
		log.debug("saving MdlQuestionCategories instance");
		try {
			getSession().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(MdlQuestionCategories persistentInstance) {
		log.debug("deleting MdlQuestionCategories instance");
		try {
			getSession().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public MdlQuestionCategories findById(java.lang.Long id) {
		log.debug("getting MdlQuestionCategories instance with id: " + id);
		try {
			MdlQuestionCategories instance = (MdlQuestionCategories) getSession()
					.get("idv.loveloser.dao.MdlQuestionCategories", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(MdlQuestionCategories instance) {
		log.debug("finding MdlQuestionCategories instance by example");
		try {
			List results = getSession()
					.createCriteria("idv.loveloser.dao.MdlQuestionCategories")
					.add(Example.create(instance)).list();
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding MdlQuestionCategories instance with property: "
				+ propertyName + ", value: " + value);
		try {
			String queryString = "from MdlQuestionCategories as model where model."
					+ propertyName + "= ?";
			Query queryObject = getSession().createQuery(queryString);
			queryObject.setParameter(0, value);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByName(Object name) {
		return findByProperty(NAME, name);
	}

	public List findByContextid(Object contextid) {
		return findByProperty(CONTEXTID, contextid);
	}

	public List findByInfo(Object info) {
		return findByProperty(INFO, info);
	}

	public List findByInfoformat(Object infoformat) {
		return findByProperty(INFOFORMAT, infoformat);
	}

	public List findByStamp(Object stamp) {
		return findByProperty(STAMP, stamp);
	}

	public List findByParent(Object parent) {
		return findByProperty(PARENT, parent);
	}

	public List findBySortorder(Object sortorder) {
		return findByProperty(SORTORDER, sortorder);
	}

	public List findAll() {
		log.debug("finding all MdlQuestionCategories instances");
		try {
			String queryString = "from MdlQuestionCategories";
			Query queryObject = getSession().createQuery(queryString);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public MdlQuestionCategories merge(MdlQuestionCategories detachedInstance) {
		log.debug("merging MdlQuestionCategories instance");
		try {
			MdlQuestionCategories result = (MdlQuestionCategories) getSession()
					.merge(detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(MdlQuestionCategories instance) {
		log.debug("attaching dirty MdlQuestionCategories instance");
		try {
			getSession().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(MdlQuestionCategories instance) {
		log.debug("attaching clean MdlQuestionCategories instance");
		try {
			getSession().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}
}